Review · Compact Prime Lens
Compact 50mm f/1.8 prime
Third-party 50mm f/1.8 · $349 · Full-frame & APS-C mounts
9.1
Our score
Editor's Choice
Center sharpness rivals lenses three times the price, with autofocus speed that surprised every tester on staff.
PRODUCT SHOT — 4:3
Pros
+Exceptional center sharpness wide open
+Fast, near-silent autofocus motor
+Compact and lightweight for daily carry
+Priced well below comparable primes
Cons
−Soft corners until f/2.2
−No weather sealing
−Plastic mount on the base version
Full specifications
Focal length50mm
Max aperturef/1.8
Min aperturef/16
Elements / groups7 / 6
Autofocus motorLinear STM
Minimum focus distance0.38m
Filter thread52mm
Weight203g
How it compares
This Lens
Rival A
Rival B
Price
$349
$599
$449
Center sharpness (MTF)
0.82
0.79
0.71
AF speed (0.2s test)
Pass
Pass
Fail
Weight
203g
305g
240g
Weather sealing
No
Yes
No
Sponsored placement